1. Graduate School of Hebei Medical University, Shijiazhuang, 050017, China
2. Endocrinology Department, Hebei General Hospital, Shijiazhuang, 050051, China
3. Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
4. Department of Internal Medicine, Hebei Medical University, Shijiazhuang, 050017, China
5. Hebei Key Laboratory of Metabolic Diseases, Shijiazhuang, 050051, China